00:01
A generator receives 1 ,500 horsepower of mechanical power from a turbine, and then transfers 80 % of that power electrically to other sources.
00:16
If the voltage in this transmission is 2 ,000 volts, what is the current along these transmission lines? how do we go about answering this question? well, we're given the voltage in the transmission lines, we're given some information about the power in the transmission lines, and we want to find the current in the transmission lines.
00:45
And so what equation do we use? the equation relating power, voltage, and current, p equals i times v.
00:55
Let's solve this for i so that we can calculate it later on.
01:02
First, however, since we're not given the explicit value of the power, we have to calculate the power in the transmission lines.
01:12
We know that the amount of power being sent out by the generator is 80 % of how much is being received.
01:20
That is, 80 % of 1 ,500 horsepower...